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Oscillators: ASD-44.000MHZ-LC-T application field and working principle

Oscillators play a major role in the modern electronic industry, and numerous variations of oscillators have been designed to fulfill many application needs. This article will provide an in-depth exploration of the ASD-44.000MHZ-LC-T oscillator, looking at its application field and working principle.

Application Field

ASD-44.000MHZ-LC-T is an ultra-low phase noise oscillator with a high-frequency output of 44 MHz. The operating temperature range of this oscillator is -20°C to +70°C for industrial applications, making it highly suitable for a variety of industrial and commercial applications. Common applications include:

• Vector signal generators
• Radar and navigation receivers
• Wireless communication systems
• RF imaging systems
• Wireless communication systems

Being highly cost-effective, the ASD-44.000MHZ-LC-T is widely used in communication systems, instrumentation systems, testing systems, and medical imaging systems.

Working Principle

The ASD-44.000MHZ-LC-T oscillator is a micro fabrication-based silicon oscillator. It utilizes a high-frequency surface acoustic wave (SAW) resonator to achieve precise frequency control while maintaining an incredibly low phase noise and high stability. The frequency is adjustable usiong either a voltage-controlled oscillator design or a temperature-controlled oscillator.

The SAW resonator acts as a very small acoustic mirror, generating a frequency dependent output signal by reflecting the signal between the two sides of the mirror. This mirror is generally fabricated from a bulk quartz substrate and covered with a combination of conductive and dielectric layers. The resonator is deposited onto a single-crystal silicon chip at the center.

The SAW resonator is powered by an external source of voltage, and the oscillation frequency can be adjusted accurately by changing the frequency parameter values. The ASD-44.000MHZ-LC-T oscillator has a wide frequency range of 10 MHz to 44 MHz, and a remarkable operating temperature range of -20°C to +70°C. The oscillator also has a fast rise time of 11 nsec and a quiet fall time of 5 nsec.

Given the fact that the ASD-44.000MHZ-LC-T oscillator is low power, low phase noise, and low cost, it has become a popular choice for many applications.

Conclusion

The ASD-44.000MHZ-LC-T oscillator has a wide range of applications, from vector signal generators to navigation receivers. Its micro fabrication-based design and SAW resonator are the basis for its exceptional low phase noise and temperature stability. It is low cost and highly efficient, making it a popular choice for industrial and commercial applications.

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